a. [ L. observabilis: cf. F. observable. ] 1. Capable of being observed; discernible; noticeable. Sir. T. Browne. [ 1913 Webster ]
The difference is sufficiently observable. Southey. [ 1913 Webster ]
2. Worthy of being observed; important enough to be noted or celebrated; as, an observable anniversary. [ PJC ]
3. Noteworthy; remarkable. [ PJC ]
-- Ob*serv"a*ble*ness, n. -- Ob*serv"a*bly, adv. [ 1913 Webster ]